what is the waste product of protein digestion
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ATI TEAS 7

TEAS 7 science practice

1. What is the waste product of protein digestion?

Correct answer: D

Rationale: The waste product of protein digestion is ammonia. Protein digestion breaks down proteins into amino acids, and during this process, ammonia is produced. Ammonia is toxic and needs to be converted into urea in the liver for excretion via urine. Glucose is a product of carbohydrate digestion, amino acids are building blocks of proteins, and fatty acids are the end products of fat digestion. Therefore, the correct answer is ammonia.

2. Which muscular tube carries urine from the kidneys to the bladder?

Correct answer: B

Rationale: The correct answer is B: Ureter. The ureter is the muscular tube that carries urine from the kidneys to the bladder. The nephron is the functional unit of the kidney responsible for filtering blood and producing urine. The urethra is the tube that carries urine from the bladder out of the body. The glomerulus is a network of capillaries in the nephron where filtration of blood occurs.

3. The body's first line of defense against pathogens is the innate immune system. Which of the following is NOT a component of the innate immune system?

Correct answer: D

Rationale: The production of antibodies specific to a particular pathogen is a function of the adaptive immune system, not the innate immune system. The innate immune system provides immediate, non-specific defense mechanisms against pathogens, including physical barriers, phagocytes, and inflammatory responses. Choices A, B, and C are all correct components of the innate immune system. Physical barriers like skin and mucous membranes act as the first line of defense, preventing pathogens from entering the body. Phagocytes are specialized cells that engulf and destroy pathogens, while the inflammatory response helps isolate and contain infections to prevent their spread.

4. Which of the following are the blood vessels that transport blood away from the heart?

Correct answer: A

Rationale: Arteries are blood vessels that carry oxygen-rich blood away from the heart to various parts of the body. Therefore, they are the vessels that transport blood away from the heart. Veins, on the other hand, transport blood back to the heart. Capillaries are tiny blood vessels where the exchange of nutrients and waste products occurs between blood and tissues, not vessels that transport blood to the heart. Venules are small veins that collect blood from capillaries and connect them to larger veins, rather than transport blood to the heart.

5. What are the three layers of the heart?

Correct answer: C

Rationale: The correct answer is C: Epicardium, myocardium, endocardium. The heart wall consists of three layers: the outer layer is the epicardium, the middle muscular layer is the myocardium, and the inner layer is the endocardium. Understanding the layers of the heart is essential for comprehending its structure and function. Choices A, B, and D are incorrect because they do not present the layers of the heart in the correct order. The pericardium is the outermost layer that surrounds the heart, but it is not part of the heart wall itself. Therefore, choices B and D are incorrect. Choice A is incorrect as it presents the layers in the wrong order, starting with the endocardium instead of the epicardium, which is the outermost layer.

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